GSPLCI (Polyline color index) - sets the polyline color index.

       To use GKS routines, load the NCAR GKS-0A library ncarg_gks.

       #include <ncarg/gks.h>

       void gset_line_colr_ind(Gint line_colr_ind);

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.

UNIX                                               March 1993                                     GSPLCI(3NCARG)

       COLI        (Integer, Input) - A color index.

       GSPLCI (Polyline color index) - sets the polyline color index.

       Online: gpl, gsln, gslwsc, gscr, gqln, gqlwsc, gqplci, dashline, gset_line_colr_ind

       Hardcopy: User's Guide for NCAR GKS-0A Graphics; NCAR Graphics Fundamentals, UNIX Version

       CALL GSPLCI (COLI)

       All lines drawn with calls to the GPL output primitive will be drawn with the color associated with index
       COLI until GSPLCI is called again and a new index is assigned.

       For  all  GKS  output  primitives, color is assigned using a color index. The color indices run from 0 to
       255, where 0 is the background color index and 1  is  the  foreground  color  index.   Color  values  are
       associated  with  indices  by  calls to the GKS routine GSCR.  If a color index is used that has no user-
       assigned color value set in a GSCR call, then a device-dependent color value will  be  assigned  to  that
       index.